GL-PD-20-05 REV E 8-12-2020.pdf

DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

INCH-POUND

GL-PD-20-05E

12 August 2020

SUPERSEDING

GL-PD-20-05D

12 June 2020

PURCHASE DESCRIPTION

COVER, FACE

This purchase description is approved for use by all Department and Agencies of the

Department of Defense (DoD).

1. SCOPE

1.1 Scope. This Purchase Description (PD) covers the requirements for face covers, which are intended for wear by military personnel. The face cover is not certified or tested by any

Regulatory agency for a specialized level of protection.

1.2 Classification. The face cover is available in three (3) types, and nine (9) classes, one (1) size fits all.

1.2.1 Types.

Type I

Type II

Type III Flame Resistant Cloth

1.2.2 Classes.

Class 1 - Tan 499 (Nylon/ Cotton Ripstop)

Class 2 - Black 557 (Nylon/ Cotton Ripstop)

Class 3 - Operational Camouflage Pattern (OCP) (Nylon/ Cotton Ripstop)

Class 4 - Tan 499 (Polyester/ Cotton Plain Weave)

Class 5 - Black 557 (Polyester/ Cotton Plain Weave)

Class 6 - Operational Camouflage Pattern (OCP) (Polyester/ Cotton Plain Weave)

Class 7 - Operational Camouflage Pattern (OCP) (Flame Resistant cloth)

Class 8 - Coyote 498 (Nylon/ Cotton Ripstop)

Class 9 - Coyote 498 (Polyester/ Cotton Plain Weave)

AMSC N/A FSC 8415

Comments, suggestions, or questions on this document should be addressed to: Department of the Army, Combat Capabilities Command Soldier Center, 10 General Greene Avenue, Natick MA 01760- 5019. ATTN: FCDD-SCP-WC.

GL-PD-20-05E

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3 and 4 of this specification, whether or not they are listed

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

COMMERCIAL ITEM DESCRIPTIONS

A-A-50199 - Thread, Polyester Core, Cotton or Polyester-Covered

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-DTL-32075 - Label: For Clothing, Equipage, and Tentage, (General Use)

MIL-DTL-43701 - Cord, Elastic, Nylon or Polyester

(Copies of these documents are available online at https://quicksearch.dla.mil.)

2.2.2 Other Government documents, drawings, and publications. The following other

Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those specified in the solicitation or contract.

DRAWINGS

U.S. ARMY COMBAT CAPABILITIES DEVELOPMENT COMMAND SOLDIER CENTER

2-1-2592 Operational Camouflage Pattern (OCP)

2-6-1014 Barrel Lock with Keeper

2-6-1280 Assembly, Type I, Face Cover

2-6-1282 Assembly, Type II, Face Cover

2-6-1284 Label, Face Cover

2-6-1285 Assembly, Type III, Face Cover

(Copies of drawings are available from the U.S. Army Combat Capabilities Development

Command Soldier Center, ATTN: FCDD-SCP-WC, 10 General Greene Avenue, Natick, MA

01760-5019.)

https://quicksearch.dla.mil/

2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those specified in the solicitation or contract.

AMERICAN ASSOCIATION OF TEXTILE CHEMISTS AND COLORISTS (AATCC)

AATCC EP1 - Evaluation Procedure for Gray Scale for Color Change

AATCC EP2 - Evaluation Procedure for Gray Scale for Staining

AATCC EP5 - Evaluation Procedure for Fabric Hand

AATCC EP8 - Evaluation Procedure for AATCC 9-Step Chromatic Transference Scale

AATCC EP9 - Evaluation Procedure for Visual Assessment of Color Difference of Textiles

AATCC TM8 - Test Method for Colorfastness to Crocking: Crockmeter

AATCC TM15 - Test Method for Colorfastness to Perspiration

AATCC TM16.3 - Test Method for Colorfastness to Light: Xenon Arc

AATCC TM20A - Test Method for Fiber Analysis: Quantitative

AATCC TM61 - Test Method for Colorfastness to Laundering: Accelerated

AATCC TM81 - Test Method for pH of the Water-Extract from Wet Processed Textiles

AATCC TM135 - Test Method for Dimensional Changes of Fabrics after Home Laundering

(Copies of these documents are available on line at https://www.aatcc.org.)

AMERICAN SOCIETY FOR QUALITY (ASQ)

ASQ/ANSI Z1.4 – Sampling Procedures and Tables for Inspection by Attributes

(Copies of these documents are available online at https://asq.org.)

ASTM INTERNATIONAL

ASTM D737 - Standard Test Method for Air Permeability of Textile Fabrics

ASTM D1424 - Standard Test Method for Tearing Strength of Fabrics by Falling -

Pendulum (Elmendorf Type) Apparatus

ASTM D3775 - Standard Test Method for Warp (End) and Filling (Pick) Fabric

Count of Woven Fabric

ASTM D3776/D3776M - Standard Test Methods for Mass Per Unit Area (Weight) of Fabric

ASTM D3990 - Standard Terminology Relating to Fabric Defects

ASTM D5034 - Standard Test Method for Breaking Strength and Elongation of

Textile Fabrics (Grab Test)

ASTM D6193 - Standard Practice for Stitches and Seams

ASTM D6413 - Standard Test Method for Flame Resistance of Textiles (Vertical

Test)

ASTM D6988 - Standard Guide for Determination of Thickness of Plastic Film

Test Specimens

(Copies of these documents are available online at https://www.astm.org.)

https://www.aatcc.org/ https://asq.org/ https://www.astm.org/

PUBLICATIONS

Fabric Defect Replica Scales

(For Information on obtaining copies of the Fabric Defect Replica Scales please contact U.S.

Army Combat Capabilities Development Command (CCDC), Soldier Center, ATTN: FCDD-

SCP-WC, 10 General Greene Avenue, Natick, MA 01760-5019.)

INFORMA HEALTHCARE

Repeat Insult Patch Test - Modified Draize Procedure – Principles and Methods of Toxicology, A Wallace Hayes (editor).

(Copies of this document are available online at https://www.crcpress.com.)

2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. REQUIREMENTS

3.1 Inspections.

3.1.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2.

3.1.2 Conformance inspection. When specified (see 6.2), a sample shall be subjected to conformance inspection in accordance with 4.3.

3.2 Standard sample. The finished face cover(s) shall match the standard sample for shade and appearance, and shall, unless otherwise indicated, be equal to or better than the standard sample with respect to all characteristics for which the standard sample is referenced (see 6.4).

3.3 Recycled, recovered, environmentally preferable, or biobased materials. Recycled, recovered, environmentally preferable, or biobased materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs.

3.4 Materials.

3.4.1 Basic materials. The basic materials for the face cover(s) shall have no finishes (pure form) and shall meet the requirements of Table I when tested as specified in 4.6. There are three

(3) cloths available that are specified in Table I; Classes 1, 2 and 3 are a nylon/ cotton blend, Classes 4, 5 and 6 are a polyester/ cotton blend, and Class 7 is an inherently flame-resistant fabric.

The colors shall be Tan 499 for Classes 1 and 4, Black 557 for Classes 2 and 5, Operational

Camouflage Pattern (OCP) for Classes 3, 6, and 7, and Classes 8 and 9.for Coyote 498, unless otherwise specified in the contract or solicitation.

NOTE: "The Operational Camouflage Pattern (OCP) is not available to the public. Printing of

OCP requires a license of one (1) or more U.S. Patents. For additional information regarding

OCP please contact the Department of the Army, Combat Capabilities Command Soldier Center, Office of Research Technology Applications (ORTA), 10 General Greene Avenue, Natick MA

01760- 5019, ATTN: FCDD-SCG-OB.

TABLE I. Basic material requirements.

Characteristic Requirement

Classes 1, 2, 3, & 8

Requirement

Classes 4, 5, 6 & 9

Requirement

Class 7

Fiber identification quantitative, percent

57% T420 High

Tenacity Nylon

43% Cotton

65 (±3) %

Polyester

35 (±3) % Cotton inherently flame resistant fabric

Weave Ripstop Plain weave Ripstop

Weight, oz./square yard 5.3 - 5.6 4.0-5.0 5.3 -5.6

Construction, yarns per inch, (min.)

Warp

Filling

Breaking strength, lbs. (min.)

Tearing strength, pounds (min.)

2.5

Dimensional stability, after 5 launderings percent (max.)

Warp direction

Filling direction

Air Permeability (cu.ft/min./sq.ft.) (min.) 25 65 25 pH 5.0 - 8.5 5.0 - 8.5 5.0 - 8.5

THIS SPACE LEFT INTENTIONALLY BLANK

TABLE I. Basic material requirements. - Continued

Classes 1, 2, 3, & 8

Requirement

Classes 4, 5, 6 & 9

Requirement

Class 7

Flame Resistance

Before laundering

After flame, seconds (max.)

Warp

Filling

After glow, seconds (max.)

Warp

Filling

Char length, inches (max.)

Warp

Filling

Melt/drip (max.)

After 100 laundering cycles

After flame, seconds (max.)

Warp

N/A

4.5 none

Flame Resistance- Continued

After 100 laundering cycles

After glow, seconds (max.)

Warp

Filling

Char length, inches (max.)

Warp

Filling

Melt/drip (max,) none

3.4.1.1 Operational Camouflage Pattern (OCP) (Classes 3, 6 & 7). The cloth shall be either dyed to a ground shade matching Dark Cream 559 and then overprinted with the remaining six

(6) colors Tan 525, Light Sage 560, Olive 527, Dark Green 528, Brown 529, and Bark Brown

561 areas of the camouflage pattern (see Drawing 2-1-2592) or when the ground shade is not dyed to Dark Cream 559 all seven (7) colors of the camouflage pattern shall be printed to match all seven (7) colors of the pattern. Resin bonded pigments shall not be used.

3.4.1.2 Pattern execution (Classes 3, 6, and 7). The pattern on the printed cloth shall match the standard sample with respect to design, colors, and registration of the respective areas. The various areas of the pattern shall be properly registered in relation to each other and shall present definite sharp demarcations and/or feathering as required for each color. Each pattern area shall show full coverage; skitteriness, feathering, haloing or trapping and off register exceeding that shown on the standard sample in any of the printed areas will not be acceptable. When the standard sample is not available for pattern execution, a pattern drawing will be provided (see

6.4) and the pattern on the finished cloth shall match that of the drawing (2-1-2592) when tested as specified in 4.6. The pattern repeat shall be as follows:

Operational Camouflage pattern (OCP) - 25.25 (+1.25, -2.50) inches in the warp direction and

68-inches maximum camouflage printed area in the filling direction.

3.4.1.3 Labile sulfur (all classes). Dyes and compounds containing elementary sulfur capable of oxidation to sulfuric acid shall not be used. The dyed cloth shall be “Free” of labile sulfur when tested as specified in 4.6.

3.4.1.4 Visual shade matching. The color and appearance of the cloth(s) shall match the standard sample (see 6.4) when tested as specified in 4.6.

3.4.1.5 Color. The cloth(s) for the face cover(s) shall meet the colorfastness requirements of

Table II when tested as specified in 4.5.

TABLE II. Colorfastness requirements, all types and classes.

Colors Evaluation Laundering

(3 cycles)

Color Change and Staining

(min.)

Light (40 AFU or

170 kJ/ m2nm)

@ 420 nm)

(min.) 1/

Perspiration

(acid & alkaline)

Color Change and

Staining (min.)

Crocking

(Dry only)

(min.)

SOLIDS

Tan 499 (Classes 1 & 4)

2-3 3-4 3-4 3.4 Black 557 (Classes 2, & 5)

Coyote 498

(Classes 8 & 9)

OCP (Classes 3, 6, & 7)

Dk. Green 528, Brown 529, Bark Brown 561

2-3 3-4 3-4 3.4

Tan 525, Olive 527, Dark Cream 559, Light Sage 560

2-3 3 3-4 3.4

1/ AATCC Fading Units (AFU)

3.4.2 Elastic cord (all types). The elastic cord shall conform to Type II of MIL-DTL-43701 and shall be cut to 40-inches in length (unless otherwise specified). The color shall be Tan 499 for Classes 1, 3, 4, 6, and 7, or Black 557 for Classes 2 and 5, or Coyote 498 for Classes 8 and 9, or as specified in the contract.

3.4.3 Barrel lock cord closure (all types). The elastic draw cord closure shall be a plastic barrel lock type in accordance with drawing 2-6-1014, Barrel Lock with Keeper (see 2.2.2). The color shall be Tan 499 for Classes 1, 3, 4, 6, and 7, or Black 557 for Classes 2 and 5, or Coyote

498 for Classes 8 and 9, or as specified in the contract.

3.4.4 Thread (all types). The thread for the needle and bobbin shall conform to the requirements of A-A-50199, Tex Size 36-45 for all seaming, stitching and backtacks. The color shall be Tan 499 for Classes 1, 3, 4, 6, and 7, or Black 557 for Classes 2 and 5, or Coyote 498 for

Classes 8 and 9, or as specified in the contract.

3.4.5 Stiffener (for bridge of nose-Type I). The stiffener for the bridge of the nose on the face cover shall be 5052 Grade Aluminum, .03 thick. The cut dimensions shall be 5-inches by

1/4-inch with all sharp edges radiused, and all corners radiused (full radius).

3.4.5.1 Wire (for bridge of nose - Type II and Type III). The wire for the bridge of the nose on the face cover shall be Welding Wire, 5356 Grade Aluminum, 1/16-inch (.0625) thick.

3.4.5.2 Stiffener (Type III only). Material shall be high density polyethylene, .030 inch thick, natural color.

3.5 Labels.

3.5.1 Labels and bar code labels.

3.5.1.1 Labels. Each face covering shall have a combination identification and instruction label conforming to the requirements of Type VI, Class 15 of MIL-DTL-32075. The label color shall be Tan 499, or as specified in the contract. The label location and size shall conform to Drawing 2-6-1284.

3.5.1.2 Bar code label (all types). Each face covering shall have a bar coding label in accordance with Type VIII, Class 17 of MIL-DTL-32075. The bar coding element shall be a

13 digit National Stock Number (NSN). There shall be a 12 digit Universal Product Code

(UPC) number assigned for all NSNs by the contracting activity. The initials “UPC” must appear beneath the code. The barcode for NSN and UPC type shall be a medium to high density and shall be located so that it is completely visible on the face covering when packed.

The tags shall be clearly legible and readable by a scanner.

3.6 Toxicity. The finished face cover(s) shall not present a health hazard and shall show compatibility with prolonged, direct skin contact when tested as specified in 4.6.2. Chemicals recognized by the Environmental Protection Agency (EPA) as human carcinogens or hazardous shall not be used.

3.7 Design. The design of the face covers shall conform to Natick Drawings; 2-6 1280 for

Type I, 2-6-1282 for Type II, and 2-6-1285 for Type III.

3.7.1 Configuration.

3.7.1.1 Construction detail. All seams shall be consistent and exhibit a uniform appearance.

Stitches, seam types, and stitch placement, shall conform to ASTM D6193. Seams shall be sewn so that no raw fabric edges, open seams, twists, or puckers.

3.7.1.2 Repairs. Repairs such as mends, darns, patches, or splices shall not be permitted on face covers.

3.7.1.3 Use of automated apparel equipment. Automated apparel equipment may be used to manufacture face covers to this purchase description, provided that the stitch and seam types are as specified and the finished component conforms to the required configuration. When a

Government furnished shaper pattern is provided, the component shall conform to that pattern.

3.8 Workmanship. After completion of the final assembly, the face cover(s) shall be thoroughly cleaned and all threads, lint and foreign matter shall be removed. The face cover(s) shall not contain any fabric defects. The face cover(s) shall be uniform in quality and shall be free from irregularities or defects which could adversely affect performance, reliability or durability. The face cover(s) shall conform to the quality of product established by this purchase description.

4. VERIFICATION

4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:

a. First article inspection (see 4.2).

b. Conformance inspection (see 4.3)

4.2 First article inspection. A first article, submitted in accordance with 3.1.1 shall be inspected, examined for appearance, color and finished defects as specified in 4.5 and tested for the characteristics as specified in 4.6.

4.3 Conformance inspection. Conformance inspection (see 3.1.2) shall include the shall be performed in accordance with ASQ/ANSI Z1.4 and with acceptance quality limits as examination of the 4.5 and the tests of 4.6 through 4.6.2 as applicable. Sampling for inspection specified in the contract and/or order, except where otherwise indicated (see 6.2).

4.4 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance with all the requirements of referenced documents, unless otherwise excluded, amended, modified or qualified in this specification of applicable procurement documents (see

6.2).

4.5 Methods of inspection.

4.5.1 End item examination. The finished examination sample size, acceptance quality limits and acceptance criteria shall be specified in the solicitation or contract (see 6.2).

4.5.2 End item visual examination. Each face cover shall be subjected to visual examination.

All defects shall be scored in accordance with Table III which are clearly noticeable at normal viewing and affect serviceability and appearance of the face cover. Material defects are defined in ASTM D3990. If needed, closer inspection will be performed to verify compliance to specification requirements. Shade shall be evaluated at a distance of 3-feet and in accordance with 4.5.2.1.

4.5.2.1 Visual shade matching. The color and appearance of the cloth(s) use in the face cover(s) as specified in 3.4 shall match the standard samples when viewed using the AATCC

EP9, Option C (see 6.6), with sources simulating artificial daylight D75 illuminant with a color temperature of 7500K (± 200) illumination of 100 (±20) foot candles, and shall be a good match to the standard sample under incandescent A illuminant with a color temperature of 2856K (±

200).

TABLE III. End item visual defects.

Examine Defect Description Classification

Major Minor

Appearance Face cover not symmetrical, bottom hem twisted

Affecting appearance

Affecting function

Material defects

Hole, cut, tear, smash, burn, exposed drill hole, thin place, needle chew, visible mends.

Color not as specified, dye streaks

Knots greater than fabric defect scale Level C (see 2.3)

Slubs greater than fabric defect scale Level D (see 2.3)

Cleanliness Any spot or stain on outside.

Excessive thread ends no more than 1/4-inch (more than

3) not trimmed or removed.

Odor Indelible ink shade stamping exposed on outside.

Component and assembly

Any component part misplaced or required operation omitted, not as specified, distorted, full, tight or twisted.

Any part of face cover caught in unrelated stitching (unless otherwise specified herein)

Any component not color specified

Any defective components

Draw cord

Cut ends not properly seared and knotted as specified

Cut end in knot in excess of 1/2-inch tag end

Cutting Any component part not cut in strict accordance with directional lines indicated on pattern or not cut in accordance with document requirements

TABLE III. End item visual defects. - Continued

Major Minor

Stitching and Seam twisted, puckered Ends of stitching not secured as specified

Thread break (all stitch types) stitched less than 1/2- inch beyond end of break

Skipped stitches or open seams with puckering, waviness or raw fabric edges showing through stitch lines

Seams that have uneven tensions that restrict stretch or cause cracking or breaking of threads.

Edges not hemmed or with raw fabric edges

1/2-inch or less

More than 1/2-inch seams 207

Gauge of stitching and seam allowances

Irregular, unevenly gauged or corresponding stitching not uniformly gauged

Edge or raised stitching sewn too close to edge resulting in damage to cloth

Open seams Any seam open on outside of face cover:

1/2-inch or less more than 1/2-inch

NOTE: An open seam is defined as one (1) or more broken or two (2) or more consecutive skipped or runoff stitches

Stitch and seam types

Not as specified 121

Stitch tension Loose tension resulting in a loose seam, or tight tension

(stitches break when strain is applied to the direction of seam)

Stitches per inch (If these are specified)

Less than minimum specified

More than maximum specified

NOTE: This defect is to be scored only when the condition exists on one half or more of the stitching or seam

Shaded parts Badly shaded parts 210

Shade variation within part of between parts. 211

Packaging Any face cover not packaged in accordance with contract or purchase order

Sizing Any measurement on the face cover that is out of tolerance. 212

Label Missing, incorrect, or illegible or not attached where specified.

TABLE III. End item visual defects. - Continued

Major Minor

Label

(identification, or instruction-if applicable)

Not securely attached. 213

Barcode Omitted or not readable by scanner 127 (if applicable)

Human readable interpretation (HRI) omitted 128

Not visible on folded, packaged item 129

Attachment causes damage to the end item 130

4.6 Component testing. Components shall be tested for the characteristics listed in Table IV wherever applicable and the methods of testing as specified in Table IV shall be followed. All test reports shall contain the individual values utilized in expressing the final results. Unless otherwise noted, each lot of component material or end item must be tested, and the lot shall be unacceptable if one (1) or more sample units fail to meet any requirements specified. The number of samples tested per lot shall be in accordance with Table V, unless otherwise noted.

TABLE IV. Component testing, all types and classes.

Reference Test Method

Basic Materials (see 3.4.1)

Fiber identification quantitative, percent 3.4.1 & Table I AATCC TM20A

Weave 3.4.1 & Table I Visual

Weight, oz./square yard 3.4.1 & Table I

ASTM D3776/D3776M

Option C

Construction,(yarns per inch), (min.)

Warp and Filling

3.4.1 & Table I ASTM D3775

Breaking strength, lbs. (min.)

Warp and Filling

3.4.1 & Table I

ASTM D5034

(GE or GT)

Tearing strength (pounds) (min.)

Warp and Filling

3.4.1 & Table I ASTM D1424

Dimensional stability, After 5 laundering cycles, percent (max):

Warp and Filling direction 3.4.1 & Table I AATCC TM135, 3,V, Aiii

Air Permeability (min.) 3.4.1 & Table I ASTM D737 pH 3.4.1 & Table I AATCC TM81

Flame Resistance 3.4.1 & Table I ASTM D6413

Laundered samples:

AATCC TM135, 3, V, Aiii

TABLE IV. Component testing, all types and classes. - Continued

Reference Test Method

Labile Sulfur 3.4.1.3 4.6.1

Visual Shade Matching 3.4.1.4 4.5.2.1

Colorfastness: 3.4.1.5

Laundering (after 3 cycles)

3.4.1.5 & Table II AATCC TM61 Test 3A 1/

Light (after 40 AFU or 170 kJ/

(m2nm)@420 nm)

3.4.1.5 & Table II AATCC TM16.3

Options 1 or 3 2/

Perspiration (acid & alkaline) 3.4.1.5 & Table II AATCC TM15 1/

Crocking (Dry only) 3.4.1.5 & Table II AATCC TM8 3/

Thickness (Stiffener 3.4.5.2) 3.4.5.2 ASTM D6988

Toxicity 3.6 4.6.2

1/ Rated using AATCC EP1, Gray Scale for Color Change and AATCC EP2, Gray Scale for

Staining.

2/ Rated using AATCC EP1, Gray Scale for Color Change

3/ Rated using AATCC EP8, AATCC 9-Step Chromatic Transference Scale

TABLE V. Lot sampling requirements.

Lot Size (yards) Sample Size (sample units)

800 or below 2

801-10,000 3

10,000 and over 4

4.6.1 Presence of labile sulfur test. In the determination of presence of labile sulfur in textile materials with lead acetate, two (2) 1.50 (± 0.01) gram samples from each material submitted for evaluation shall be tested. Each of the two (2) samples shall be cut into very small pieces and placed into separate test tubes. The samples shall be submersed in a stannous chloride solution that contains 100 grams of stannous chloride crystals ACS in 100 milliliters of hydrochloric acid

ACS (35 percent concentration) and 50 milliliters of distilled water. A filter paper wet out with a

5.0 percent lead acetate solution shall be placed over top of the test tube. The lead acetate solution contains 5.0 grams of lead acetate CP reagent grade and enough distilled water to make up a 100 milliliter solution; if the solution is not clear, add a few drops (one at a time) of glacial acetic acid until the solution is clear. The test tube containing the textile sample, stannous chloride and wet filter paper shall be heated over a low flame until the solution is boiling. The solution should not be heated for more than 15 seconds. A brown to Black stain on the filter paper should be evaluated as follows:

Free - The filter paper shows no discoloration or staining of any kind.

Slight - The filter paper shows a light tan to light brown discoloration stain.

Moderate - The filter paper shows a dark brown discoloration stain.

Severe - The filter paper shows a Black color stain.

4.6.2 Toxicity test. When required, (see 6.2), an acute dermal irritation study and a skin sensitization study shall be conducted. When the results of these studies indicate the cloth is not a sensitizer of irritant, a Repeat Insult Patch Test shall be performed in accordance with the Modified Draize Procedure (See 2.3). If the toxicity requirement (see 3.6) can be demonstrated with historical use data, toxicity testing may not be required (see 6.2).

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2). When actual packaging of material is to be performed by DoD or in-house contractor personnel, these personnel need to contact the responsible packaging activity to ascertain requisite packaging requirements. Packaging requirements are maintained by the

Inventory Control Point’s packaging activities within the Military Department or Defense

Agency, or within the military service’s system commands. Packaging data retrieval is available from the managing Military Department’s or Defense Agency’s automated packaging files, CD-

ROM products, or by contacting the responsible packaging activity.

5.1.1 Packaging. Packaging of the face cover(s) shall be one (1) per sealed bag and 10 individually sealed face covers in larger sealed bag.

6. NOTES

6.1 Intended use. The use of the face cover is to be worn by military personnel for protection.

This face cover is not intended to offer the filtering capabilities of medical-grade masks.

6.2 Acquisition requirements. Acquisition documents should specify the following:

a. Title, number, and date of this Purchase Description.

b. Type and Class required (see 1.2)

c. The specific issue of individual documents referenced (see 2.2)

d. When first article is required (see 3.1.1, 4.2 and 6.3)

e. Conformance inspection acceptance quality limit (see 3.1.2 and 4.3)

f. Label and barcoding requirements if applicable (see 3.5) g When toxicity testing is required (see 3.6 and 4.6.2)

h. Inspection Conditions (see 4.4)

i. Packaging (see 5.1)

6.3 First article. When a first article inspection is required (see 3.1.1), it will be inspected and approved under the appropriate provisions of FAR 52.209-4. The first article should be a preproduction sample. The contracting officer should specify the appropriate type of first article and the number of units to be furnished. The contracting officer should include specific instructions in acquisition documents regarding arrangements for selection, inspection, and approval of the first article.

6.4 Standard samples. For access to samples and pattern drawings, address the contracting activity issuing the invitation for bids or request for approval.

6.5 Visual shade matching. In 2019, Option A of AATCC EP9, Visual Assessment of Color

Difference of Textiles was changed to Option C. NOTE: In case of confusion, the viewing geometry should be “The specimen plane and illumination source will be parallel to each other and aligned so that the light flux is incident at the center of the specimen plane, which is set at a

35 (± 5) degree angle relative to the horizontal. The observer will view the specimens at a 90° angle, relative to the plane of the specimens”.

6.7 Subject term keyword listing.

Head wear

THIS SPACE LEFT INTENTIONALLY BLANK

Custodian: Preparing Activity:

Army-GL Army-GL